582 lines
17 KiB
HTML
582 lines
17 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Mathpix WASM Demo</title>
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<style>
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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min-height: 100vh;
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padding: 20px;
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}
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.container {
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max-width: 1200px;
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margin: 0 auto;
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background: white;
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border-radius: 12px;
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box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
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overflow: hidden;
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}
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header {
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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color: white;
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padding: 30px;
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text-align: center;
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}
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h1 {
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font-size: 2.5em;
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margin-bottom: 10px;
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}
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.subtitle {
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opacity: 0.9;
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font-size: 1.1em;
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}
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.content {
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padding: 30px;
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}
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.upload-section {
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border: 2px dashed #667eea;
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border-radius: 8px;
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padding: 40px;
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text-align: center;
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margin-bottom: 30px;
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cursor: pointer;
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transition: all 0.3s;
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}
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.upload-section:hover {
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background: #f8f9ff;
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border-color: #764ba2;
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}
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.upload-section.dragover {
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background: #e8ebff;
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border-color: #667eea;
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transform: scale(1.02);
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}
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.upload-icon {
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font-size: 48px;
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margin-bottom: 15px;
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color: #667eea;
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}
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input[type="file"] {
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display: none;
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}
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.btn {
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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color: white;
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border: none;
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padding: 12px 30px;
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border-radius: 6px;
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font-size: 16px;
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cursor: pointer;
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transition: transform 0.2s, box-shadow 0.2s;
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margin: 5px;
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}
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.btn:hover {
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transform: translateY(-2px);
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box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
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}
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.btn:active {
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transform: translateY(0);
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}
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.btn:disabled {
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opacity: 0.5;
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cursor: not-allowed;
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}
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.options {
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display: flex;
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gap: 20px;
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margin-bottom: 20px;
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flex-wrap: wrap;
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}
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.option-group {
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flex: 1;
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min-width: 200px;
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}
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label {
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display: block;
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margin-bottom: 5px;
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font-weight: 600;
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color: #333;
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}
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select, input[type="range"] {
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width: 100%;
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padding: 8px;
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border: 1px solid #ddd;
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border-radius: 4px;
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font-size: 14px;
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}
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.threshold-value {
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display: inline-block;
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margin-left: 10px;
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font-weight: bold;
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color: #667eea;
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}
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.preview-section {
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display: grid;
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grid-template-columns: 1fr 1fr;
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gap: 20px;
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margin-bottom: 20px;
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}
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.preview-box {
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border: 1px solid #ddd;
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border-radius: 8px;
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padding: 15px;
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background: #f9f9f9;
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}
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.preview-box h3 {
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margin-bottom: 15px;
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color: #333;
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}
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canvas {
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max-width: 100%;
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border: 1px solid #ddd;
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border-radius: 4px;
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background: white;
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}
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.results-section {
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border: 1px solid #ddd;
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border-radius: 8px;
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padding: 20px;
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background: #f9f9f9;
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margin-top: 20px;
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}
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.result-item {
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background: white;
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padding: 15px;
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border-radius: 6px;
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margin-bottom: 10px;
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border-left: 4px solid #667eea;
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}
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.result-label {
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font-weight: 600;
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color: #667eea;
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margin-bottom: 5px;
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}
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.result-value {
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font-family: 'Courier New', monospace;
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background: #f5f5f5;
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padding: 10px;
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border-radius: 4px;
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white-space: pre-wrap;
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word-break: break-all;
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}
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.confidence-bar {
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height: 8px;
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background: #e0e0e0;
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border-radius: 4px;
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overflow: hidden;
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margin-top: 10px;
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}
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.confidence-fill {
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height: 100%;
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background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
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transition: width 0.3s;
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}
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.loading {
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text-align: center;
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padding: 20px;
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color: #667eea;
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}
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.spinner {
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border: 3px solid #f3f3f3;
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border-top: 3px solid #667eea;
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border-radius: 50%;
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width: 40px;
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height: 40px;
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animation: spin 1s linear infinite;
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margin: 20px auto;
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}
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@keyframes spin {
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0% { transform: rotate(0deg); }
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100% { transform: rotate(360deg); }
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}
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.error {
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background: #fee;
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border-left: 4px solid #f44;
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color: #c33;
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padding: 15px;
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border-radius: 6px;
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margin-top: 10px;
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}
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.stats {
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display: flex;
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gap: 20px;
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margin-top: 20px;
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flex-wrap: wrap;
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}
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.stat-card {
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flex: 1;
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min-width: 150px;
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background: white;
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padding: 15px;
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border-radius: 6px;
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text-align: center;
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}
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.stat-value {
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font-size: 2em;
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font-weight: bold;
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color: #667eea;
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}
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.stat-label {
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color: #666;
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margin-top: 5px;
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}
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@media (max-width: 768px) {
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.preview-section {
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grid-template-columns: 1fr;
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}
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}
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</style>
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</head>
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<body>
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<div class="container">
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<header>
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<h1>🔬 Mathpix WASM Demo</h1>
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<p class="subtitle">OCR with LaTeX support powered by WebAssembly</p>
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</header>
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<div class="content">
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<!-- Upload Section -->
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<div class="upload-section" id="dropZone">
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<div class="upload-icon">📸</div>
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<h2>Drop an image here or click to upload</h2>
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<p>Supports PNG, JPEG, and other image formats</p>
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<input type="file" id="fileInput" accept="image/*">
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<button class="btn" onclick="document.getElementById('fileInput').click()">
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Choose File
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</button>
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</div>
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<!-- Options -->
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<div class="options">
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<div class="option-group">
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<label for="formatSelect">Output Format:</label>
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<select id="formatSelect">
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<option value="both">Both (Text + LaTeX)</option>
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<option value="text">Text Only</option>
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<option value="latex">LaTeX Only</option>
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</select>
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</div>
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<div class="option-group">
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<label for="thresholdSlider">
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Confidence Threshold:
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<span class="threshold-value" id="thresholdValue">0.50</span>
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</label>
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<input type="range" id="thresholdSlider" min="0" max="100" value="50">
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</div>
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<div class="option-group">
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<label for="workerCheckbox">
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<input type="checkbox" id="workerCheckbox" checked>
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Use Web Worker
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</label>
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</div>
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</div>
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<!-- Preview Section -->
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<div class="preview-section" style="display: none;" id="previewSection">
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<div class="preview-box">
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<h3>Original Image</h3>
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<canvas id="canvas"></canvas>
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</div>
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<div class="preview-box">
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<h3>Processing Info</h3>
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<div id="processingInfo"></div>
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<button class="btn" id="processBtn" disabled>Process Image</button>
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</div>
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</div>
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<!-- Results Section -->
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<div class="results-section" style="display: none;" id="resultsSection">
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<h3>Recognition Results</h3>
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<div id="results"></div>
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</div>
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<!-- Stats -->
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<div class="stats" style="display: none;" id="statsSection">
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<div class="stat-card">
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<div class="stat-value" id="imageCount">0</div>
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<div class="stat-label">Images Processed</div>
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</div>
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<div class="stat-card">
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<div class="stat-value" id="avgTime">0ms</div>
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<div class="stat-label">Avg. Processing Time</div>
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</div>
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<div class="stat-card">
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<div class="stat-value" id="wasmVersion">-</div>
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<div class="stat-label">WASM Version</div>
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</div>
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</div>
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</div>
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</div>
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<script type="module">
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import scipix from './index.js';
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let currentImage = null;
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let stats = {
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count: 0,
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totalTime: 0
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};
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// Initialize
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(async () => {
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try {
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const version = await scipix.getVersion();
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document.getElementById('wasmVersion').textContent = version;
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console.log('Mathpix initialized, version:', version);
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} catch (error) {
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console.error('Failed to initialize:', error);
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showError('Failed to initialize WASM module: ' + error.message);
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}
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})();
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// File input handler
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const fileInput = document.getElementById('fileInput');
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const dropZone = document.getElementById('dropZone');
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const canvas = document.getElementById('canvas');
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const processBtn = document.getElementById('processBtn');
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const thresholdSlider = document.getElementById('thresholdSlider');
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const thresholdValue = document.getElementById('thresholdValue');
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fileInput.addEventListener('change', handleFileSelect);
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processBtn.addEventListener('click', processImage);
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thresholdSlider.addEventListener('input', (e) => {
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const value = (e.target.value / 100).toFixed(2);
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thresholdValue.textContent = value;
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});
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// Drag and drop
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dropZone.addEventListener('dragover', (e) => {
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e.preventDefault();
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dropZone.classList.add('dragover');
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});
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dropZone.addEventListener('dragleave', () => {
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dropZone.classList.remove('dragover');
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});
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dropZone.addEventListener('drop', (e) => {
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e.preventDefault();
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dropZone.classList.remove('dragover');
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const files = e.dataTransfer.files;
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if (files.length > 0) {
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handleFile(files[0]);
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}
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});
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dropZone.addEventListener('click', () => {
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fileInput.click();
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});
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function handleFileSelect(e) {
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const files = e.target.files;
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if (files.length > 0) {
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handleFile(files[0]);
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}
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}
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async function handleFile(file) {
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if (!file.type.startsWith('image/')) {
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showError('Please select an image file');
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return;
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}
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try {
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currentImage = file;
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// Show preview
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const img = await createImageBitmap(file);
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const ctx = canvas.getContext('2d');
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canvas.width = img.width;
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canvas.height = img.height;
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ctx.drawImage(img, 0, 0);
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// Show preview section
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document.getElementById('previewSection').style.display = 'grid';
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document.getElementById('processingInfo').innerHTML = `
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<div class="result-item">
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<div class="result-label">File Name:</div>
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<div class="result-value">${file.name}</div>
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</div>
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<div class="result-item">
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<div class="result-label">Size:</div>
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<div class="result-value">${(file.size / 1024).toFixed(2)} KB</div>
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</div>
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<div class="result-item">
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<div class="result-label">Dimensions:</div>
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<div class="result-value">${img.width} × ${img.height}</div>
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</div>
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`;
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processBtn.disabled = false;
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} catch (error) {
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showError('Failed to load image: ' + error.message);
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}
|
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}
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async function processImage() {
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if (!currentImage) return;
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processBtn.disabled = true;
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showLoading();
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try {
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const format = document.getElementById('formatSelect').value;
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const threshold = parseFloat(thresholdSlider.value) / 100;
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const useWorker = document.getElementById('workerCheckbox').checked;
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|
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const startTime = performance.now();
|
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let result;
|
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if (useWorker) {
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const worker = scipix.createWorker();
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result = await worker.recognize(
|
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new Uint8Array(await currentImage.arrayBuffer()),
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{ format, confidenceThreshold: threshold }
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);
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worker.terminate();
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} else {
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result = await scipix.recognizeFile(currentImage, {
|
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format,
|
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confidenceThreshold: threshold
|
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});
|
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}
|
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|
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const endTime = performance.now();
|
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const processingTime = Math.round(endTime - startTime);
|
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|
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// Update stats
|
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stats.count++;
|
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stats.totalTime += processingTime;
|
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updateStats(processingTime);
|
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|
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// Show results
|
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showResults(result, processingTime);
|
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|
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} catch (error) {
|
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showError('Processing failed: ' + error.message);
|
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} finally {
|
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processBtn.disabled = false;
|
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}
|
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}
|
||
|
||
function showLoading() {
|
||
const resultsSection = document.getElementById('resultsSection');
|
||
resultsSection.style.display = 'block';
|
||
resultsSection.innerHTML = `
|
||
<div class="loading">
|
||
<div class="spinner"></div>
|
||
<p>Processing image...</p>
|
||
</div>
|
||
`;
|
||
}
|
||
|
||
function showResults(result, processingTime) {
|
||
const resultsSection = document.getElementById('resultsSection');
|
||
resultsSection.style.display = 'block';
|
||
|
||
const confidencePercent = (result.confidence * 100).toFixed(1);
|
||
|
||
let html = `
|
||
<div class="result-item">
|
||
<div class="result-label">Text:</div>
|
||
<div class="result-value">${result.text || '(empty)'}</div>
|
||
</div>
|
||
`;
|
||
|
||
if (result.latex) {
|
||
html += `
|
||
<div class="result-item">
|
||
<div class="result-label">LaTeX:</div>
|
||
<div class="result-value">${result.latex}</div>
|
||
</div>
|
||
`;
|
||
}
|
||
|
||
html += `
|
||
<div class="result-item">
|
||
<div class="result-label">Confidence: ${confidencePercent}%</div>
|
||
<div class="confidence-bar">
|
||
<div class="confidence-fill" style="width: ${confidencePercent}%"></div>
|
||
</div>
|
||
</div>
|
||
<div class="result-item">
|
||
<div class="result-label">Processing Time:</div>
|
||
<div class="result-value">${processingTime}ms</div>
|
||
</div>
|
||
`;
|
||
|
||
resultsSection.innerHTML = `<h3>Recognition Results</h3>${html}`;
|
||
}
|
||
|
||
function showError(message) {
|
||
const resultsSection = document.getElementById('resultsSection');
|
||
resultsSection.style.display = 'block';
|
||
resultsSection.innerHTML = `
|
||
<div class="error">
|
||
<strong>Error:</strong> ${message}
|
||
</div>
|
||
`;
|
||
}
|
||
|
||
function updateStats(lastTime) {
|
||
document.getElementById('statsSection').style.display = 'flex';
|
||
document.getElementById('imageCount').textContent = stats.count;
|
||
document.getElementById('avgTime').textContent =
|
||
Math.round(stats.totalTime / stats.count) + 'ms';
|
||
}
|
||
</script>
|
||
</body>
|
||
</html>
|